Emry, Lurker of the Loch + Displacer Kitten + Delif's Cone + Corridor Monitor

Emry, Lurker of the Loch

Displacer Kitten

Delif's Cone

Corridor Monitor

How it works

1. Activate Emry by tapping it, targeting Delif's Cone.
2. Cast Delif's Cone from your graveyard by paying 0.
3. Displacer Kitten triggers, blinking Corridor Monitor.
4. When Corridor Monitor enters, it triggers, untapping Emry.
5. Activate Delif's Cone by tapping and sacrificing it.
6. Repeat.

This delightful loop turns the humble Delif's Cone into an engine for infinite triggers by exploiting the recursive power of Emry, Lurker of the Loch. Once you tap Emry to cast the Cone from your graveyard, Displacer Kitten steps in to blink Corridor Monitor every time a noncreature spell is cast. The resulting entry of Corridor Monitor untaps Emry so you can repeat the process, while the Cone itself is continually sacrificed and re-cast from the graveyard.